If you have one numerical variable, several groups, and subgroups, you probably need to make a grouped violinplot.
Note that you can use faceting as well to solve this kind of dataset.
# library & dataset
import seaborn as sns
df = sns.load_dataset('tips')
# Grouped violinplot
sns.violinplot(x="day", y="total_bill", hue="smoker", data=df, palette="Pastel1")
#sns.plt.show()
